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Finding the Fourth Proportional to 220,593.36, 330,756.39 and 98,991.60

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Solution

The fourth proportional to 220,593.36, 330,756.39 and 98,991.60 is: 148,427.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,593.36 : 330,756.39 = 98,991.60 : x
  2. Step 2: Convert to fraction form
    220,593.36/330,756.39 = 98,991.60/x
  3. Step 3: Cross multiply
    220,593.36x = 330,756.39 × 98,991.60
  4. Step 4: Simplify right side
    220,593.36x = 32,742,104,256.32
  5. Step 5: Solve for x
    x = 32,742,104,256.32/220,593.36
  6. Step 6: Final answer
    x = 148,427.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.